the +
. sound, warm, clean, Music & Singing
. the 2 settings effective, intuitive, and indeed quite unconventional
. no adjustments unnecessary, it sounds always the quiet, extreme
. Game expression / responsiveness
. supports all types of gains

The -
. More tweaks may be (eg volume) but at bottom the philosophy of the pedal is not to grind 3 weights to find a sound. Anyway for more opportunities there QTron the original.